Author Details

Sahputra, Rachmad, Mathematics and Science Study Program, Faculty of Teacher Training and Education, Tanjungpura University , Jl. Prof. Dr. H. Hadari Nawawi, Bansir Laut, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat 78124, Pontianak, Indonesia, Indonesia